surpac interpolator

8/13/2019 Surpac Interpolator

1/20

Interpolator inSurpac 6 0

August 2007

www gemcomsoftware com


2/20

Copyright 2007 Gemcom Software International Inc. (Gemcom).

This software and documentation is proprietary to Gemcom and, except where expressly providedotherwise, does not form part of any contract. Changes may be made in products or services at any timewithout notice.

Gemcom publishes this documentation for the sole use of Gemcom licensees. Without written permission

you may not sell, reproduce, store in a retrieval system, or transmit any part of the documentation. Forsuch permission, or to obtain extra copies please contact your local Gemcom office or visitwww.gemcomsoftware.com.

While every precaution has been taken in the preparation of this manual, we assume no responsibility forerrors or omissions. Neither is any liability assumed for damage resulting from the use of the informationcontained herein.

Gemcom Software International Inc. Gemcom, the Gemcom logo, combinations thereof, andWhittl e, Surpac, GEMS, Minex, Gemcom InSite and PCBC are trademarks of Gemcom SoftwareInternational Inc. or i ts w holly-owned subsidi aries.

Contributors

Rowdy BristolPhil JacksonKiran Kumar

ProductGemcom Surpac 6.0


3/20


4/20

Page 4 of 4

Introduction

Interpolator is a module which provides advanced geostatistical functionality such as multi-element, multi-zone estimation, as well as kriging neighbourhood analysis.

This document is designed to help you to understand the basic concepts of Interpolator, as well asproviding a set of steps to perform an Interpolator run.

More detailed training information is available within the software and from your local Surpac MinexGroup Support Office. When the software has been installed you can see additional training resourcesand help documentation in the Help menu.

Visit www.surpac.com to locate your nearest Support Office.

RequirementsPrior to proceeding with this tutorial, you should have:

1. Installed Surpac v6.0 or later.2. A good understanding of basic Surpac concepts.3. A good understanding of Surpac Block Modelling concepts, especially the estimation process for

ordinary kriging.4. A good understanding of geostatistical concepts.

If you do not have all of these, it is highly recommended that you work through the examples in theIntroduction to Surpac, Block Modelling, and Geostatistics tutorials.

ObjectivesBy working through this document, you should be able to:

Understand Interpolator concepts. View a sample dataset associated with an Interpolator run. Setup, modify, and validate Interpolator parameters. Perform an Interpolator run.

View output values from Interpolator.

Workflow1. Create string files with data values for each zone.2. Create block model.3. Create block model constraints for each zone.4. Create *.ipar parameter files.5. Validate input parameters.6. Run Interpolator.

7. Review output.
http://www.surpac.com/http://www.surpac.com/


5/20

Setting the Work Directory Workflow

Page 5 of 5

Setting the Work Directory

A work directory is the default directory for saving Surpac files. Files used in this tutorial are stored in thefolder:

\demo_data\tutorials\interpolator

where is the directory in which Surpac was installed.

1. In the Surpac Navigator, right-click the interpolator folder.2. From the popup menu, select Set as work directory .

The name of the work directory is displayed in the title bar of the Surpac window.


6/20

Understanding Interpolator Concepts Reviewing Information in the Online Help

Page 6 of 6

Understanding Interpolator Concepts

Overview

This chapter describes how to use the online help to review conceptual information about Interpolator.

Requirements

Prior to performing the exercises in this chapter, you should:

Have installed Surpac v6.0 or later from the CD. Have the Help Viewer installed.

Reviewing Information in the Online Help

1. Start Surpac .2. Choose Help > Table of Contents .

3. From the Table of Contents choose Block Model > Interpolator .4. Choose Interpolator > Overview and review the information presented.


7/20

Understanding Interpolator Concepts Reviewing Information in the Online Help

Page 7 of 7

5. Choose Interpolator > Setup and review the information presented.

6. On the Setup page, scroll down to the links detailing each of the tabs on the Interpolator form:

7. Click each of these links, and review the information on each page.8. Click each of the remaining Interpolator items in the Table of Contents , and review the information

on each page.

Summary

You should now understand the concepts and basic functionality of Interpolator.


8/20

Before Running Interpolator Viewing Data

Page 8 of 8

Before Running Interpolator

Overview

This chapter will describe viewing the data in this tutorial, as well as the setup and validation steps thatshould be performed prior to running Interpolator.

Requirements

Prior to performing the exercises in this chapter, you should be familiar with the Interpolator concepts asdetailed in the online help.

Viewing Data

1. Set the work directory to the location of the dataset, such as:

\demo_data\ tutorials\interpolator

where is the directory in which Surpac was installed.

2. Open sanitised.mdl .3. Right-click in the empty space at the top of the Surpac interface.4. Select Profiles > Block model as shown.


9/20


Page 9 of 9

5. Choose Display > Display block model .6. Enter the information as shown, and then click Apply .

7. Open ore_zone1.con .

You will see the blocks falling inside this constraint.

8. Open ore_comp_int_zone1.str .9. Display the string file data as markers.

10. Click the icon to turn block model faces off.


10/20


Page 10 of 10

You will see the composites that will be used to estimate blocks within this constraint.

11. Click the icon to turn block model faces back on.12. Choose Constraints > Remove all gr aphical constraints .

The entire model is redisplayed.


11/20


Page 11 of 11

Repeat all of the previous steps with each of the constraints to familiarise yourself with each constraintand data set.

Run String file Constraint

1 ore_comp_int_zone1.str ore_zone1.con






12/20

Before Running Interpolator Setup

Page 12 of 12

Setup

1. Choose Interpolator > Setup .2. Enter the information as shown, and then click Apply :

Note: Interpolator requires the name of a file with a *.ipar extension, which contains all information required for anInterpolator run. In this case, we are telling Interpolator to use the existing file sanitised.ipar , which contains a set ofinformation for this data set. We will modify a few parameters, which Setup will save to the output file modified.ipar . Youmay use the same name for the input and output files, if you want to overwrite the original file with some new data.

The *.ipar files are in text format, and can be viewed with any text editor. However, you should only modify them throughInterpolator, not a text editor.

3. On the next form, click each of the tabs and use the scroll bar at the bottom to review theinformation.

For this example, we will change the descretisation parameters from

X: 1 Y: 4 Z: 4 to: X: 1 Y: 2 Z: 2

4. Click the Interpolation Parameters tab.


13/20

Before Running Interpolator Setup

Page 13 of 13

Notice that the descretisation parameters are set to: X: 1 Y: 4 and Z: 4.

5. Click in each of the fields, and modify them as shown:

6. When you have made the changes, click Apply .

Note: This is done merely as an exercise to demonstrate how changes to the parameters can be made and stored in anew *.ipar file. In this case, modified.ipar will contain the new values for descretisation points in the Y and Zdimensions, as well as all other data previously stored in sanitised.ipar .


14/20

Before Running Interpolator Parameter Validation

Page 14 of 14

Parameter Validation

1. Choose Interpolator > Validate .2. Enter the information as shown, and then click Apply .

The software will verify that all information in modified.ipar is valid.

When completed, the message window will display: Check modi fied.xls for validation results

3. Open the file in Excel to review the results.

If any errors are found, you will need to correct them before continuing. In this case, all information iscorrect, so there is no need to do anything.

Note: You must close the spreadsheet before performing any subsequent validation checks on this *.ipar file.

Summary

You should now understand the type of data required for running Interpolator, as well as the setup andvalidation steps that should be performed prior to running Interpolator.


15/20

Running Interpolator Running Interpolator

Page 15 of 15

Running Interpolator

Overview

This chapter will describe how to perform an Interpolator run, as well as viewing the output.

Requirements

Prior to performing the exercises in this chapter, you should be familiar with viewing the data in thistutorial, as well as the setup and validation steps that should be performed prior to running Interpolator.

Running Interpolator

1. Open sanitised.mdl .2. Right-click in the empty space at the top of the Surpac interface.3. Select Profiles > Block model as shown.

4. Choose Interpolator > Run .


16/20

Running Interpolator Running Interpolator

Page 16 of 16

5. Enter the information as shown, and then click Apply .

Note: By using the same name for the input and output files, parameters in the original file may be updated.

6. On the next form, review the information, and then click Apply .

The software will now execute each of the runs, as defined by the parameters.

Once it is completed, you will see a message in the message window indicating that the model has beensaved:

Model c:/surpacminex/surpac_601/demo_data/tutorials/interpolator/sanitised.mdl saved

and the block model will be closed.


17/20

Running Interpolator Viewing Output

Page 17 of 17

Viewing OutputYou may optionally review the output by displaying the model and colouring it by an estimated attributewithin one or more constraints.

1. Open sanitised.mdl .2. Choose Display > Display block model .

Enter the information as shown, and then click Apply .

3. Open ore_zone1.con (or any other constraint).

You will see the blocks falling inside this constraint.


18/20


Page 18 of 18

Next, you will colour the model by the attribute au_ok .

4. Choose Display > Colour model by attribu te .5. Select the Attribute to colour by as au_ok , and then click the Scan button.6. Enter the Ranges for colour s election as 0,5,0.5 , and then press the Tab key to refresh the

ranges.7. When you have made these changes, click Apply .

You will see the model coloured by the values in the attribute au_ok :


19/20


Page 19 of 19

Additionally, you may review values for a block.

8. Choose At tr ibutes > View attr ibutes for one block .9. Click any block.

The attribute values for the block are displayed.

10. When you are finished reviewing the data, click Apply .11. Choose Block model > Close. 12. Select Save and exit , and then click Apply .

Summary

You should now understand how to perform an Interpolator run, as well as view the output.


20/20


Summary

Upon completion of this tutorial you should:

know how Interpolator works. understand how to set up and validate input parameters in a *.ipar file. perform an interpolator run. review output attribute values.

This document is designed to help you start using the Interpolator module. It is not designed as a trainingaid and should not be considered as a substitute for training.

Your local support office will also have access to additional training aids and can help you with advice onyour particular training needs.

Visit www.surpac.com to locate your nearest Support Office.
http://www.surpac.com/http://www.surpac.com/

surpac interpolator

Documents